They're very serious about data preservation. https://code.facebook.com/posts/1433093613662262/-under-the-hood-facebook-s-cold-storage-system-/ https://code.fa

They're very serious about data preservation. https://code.facebook.com/posts/1433093613662262/-under-the-hood-facebook-s-cold-storage-system-/ https://code.facebook.com/posts/1433093613662262/-under-the-...